Home / 505,868.17-698,089.64-276,420.42

Finding the Fourth Proportional to 505,868.17, 698,089.64 and 276,420.42

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Solution

The fourth proportional to 505,868.17, 698,089.64 and 276,420.42 is: 381,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,868.17 : 698,089.64 = 276,420.42 : x
  2. Step 2: Convert to fraction form
    505,868.17/698,089.64 = 276,420.42/x
  3. Step 3: Cross multiply
    505,868.17x = 698,089.64 × 276,420.42
  4. Step 4: Simplify right side
    505,868.17x = 192,966,231,486.45
  5. Step 5: Solve for x
    x = 192,966,231,486.45/505,868.17
  6. Step 6: Final answer
    x = 381,455.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.